PMID- 31761043 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20191125 LR - 20191125 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 1094 DP - 2020 Jan 15 TI - Incorporation of homochiral metal-organic cage into ionic liquid based monolithic column for capillary electrochromatography. PG - 160-167 LID - S0003-2670(19)31198-5 [pii] LID - 10.1016/j.aca.2019.10.002 [doi] AB - Metal-organic cages (MOCs) are a novel kind of porous materials which have three dimensional structures with perpetual and well-defined holes. They have attracted wide consideration for relatively simple synthesis and potential applications such as separation, sensing, microreactor and catalysis etc. In this study, a homochiral MOC [Zn(3)L(2)] was prepared as a novel stereoselective stationary phase and added into poly (ionic liquid-co-ethylene dimethacrylate) (Zn(3)L(2)@poly(IL-co-EDMA)) monolith for capillary electrochromatography (CEC). The chiral analytes comprising mandelic acid, benzoin and furoin enantiomer were separated perfectly using the monolithic column Zn(3)L(2)@poly(IL-co-EDMA), and the effects of buffer pH, acetonitrile percentage and buffer concentration on enantiomers separation were confirmed. Moreover, incorporation of MOC [Zn(3)L(2)] into IL polymer monolith strengthened obviously the stereoselective isolation of some positional isomers (such as nitrophenols, nitrotoluenes, xylenes, and ionones). The relative standard deviations (RSDs) of the retention time for intra-day (n = 5) and inter-day (n = 3) and column-to-column (n = 3) enantioseparations were all below 5.0%. This novel monolithic column combined distinct features of the stereoselective materials with the eminent traits of ionic liquid matrix, it has great application potential in CEC. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Li, Zhentao AU - Li Z AD - Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing, 10080, China. FAU - Mao, Zhenkun AU - Mao Z AD - Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China. FAU - Zhou, Wei AU - Zhou W AD - Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China. FAU - Chen, Zilin AU - Chen Z AD - Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing, 10080, China. Electronic address: chenzl@whu.edu.cn. LA - eng PT - Journal Article DEP - 20191009 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 SB - IM OTO - NOTNLM OT - Electrochromatography OT - Enantioseparation OT - Ionic liquid polymer OT - Metal-organic cages OT - Monolithic column EDAT- 2019/11/26 06:00 MHDA- 2019/11/26 06:01 CRDT- 2019/11/26 06:00 PHST- 2019/08/10 00:00 [received] PHST- 2019/10/01 00:00 [revised] PHST- 2019/10/06 00:00 [accepted] PHST- 2019/11/26 06:00 [entrez] PHST- 2019/11/26 06:00 [pubmed] PHST- 2019/11/26 06:01 [medline] AID - S0003-2670(19)31198-5 [pii] AID - 10.1016/j.aca.2019.10.002 [doi] PST - ppublish SO - Anal Chim Acta. 2020 Jan 15;1094:160-167. doi: 10.1016/j.aca.2019.10.002. Epub 2019 Oct 9.